.column-resizer {
    width: 3px;
    cursor: col-resize;
}

.column-resizer-guideline {
    border-right: 1px dashed #00f;
}

.column-resizer-guideline {
    width: 2px;
    display: none;
}
.column-resizer-guideline.active {
    display: block;
}
.column-resizer,.column-resizer-guideline {
    position: fixed;
    z-index: 100001;
}